Second Life viewer sources 1.13.2.12

1 files changed, 361 insertions, 0 deletions

diff --git a/linden/indra/newview/lldrawpooltree.cpp b/linden/indra/newview/lldrawpooltree.cpp
new file mode 100644
index 0000000..ad05d9a
--- /dev/null
+++ b/linden/indra/newview/lldrawpooltree.cpp
@@ -0,0 +1,361 @@
+/** 
+ * @file lldrawpooltree.cpp
+ * @brief LLDrawPoolTree class implementation
+ *
+ * Copyright (c) 2002-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "lldrawpooltree.h"
+
+#include "llagparray.h"
+#include "lldrawable.h"
+#include "llface.h"
+#include "llsky.h"
+#include "llviewerwindow.h"
+#include "llvotree.h"
+#include "pipeline.h"
+#include "llviewercamera.h"
+
+S32 LLDrawPoolTree::sDiffTex = 0;
+
+LLDrawPoolTree::LLDrawPoolTree(LLViewerImage *texturep) :
+        LLDrawPool(POOL_TREE, DATA_SIMPLE_IL_MASK, 0),
+        mTexturep(texturep)
+{
+        mTexturep->bind(0);
+        mTexturep->setClamp(FALSE, FALSE);
+}
+
+LLDrawPool *LLDrawPoolTree::instancePool()
+{
+        return new LLDrawPoolTree(mTexturep);
+}
+
+void LLDrawPoolTree::prerender()
+{
+        mVertexShaderLevel = gPipeline.getVertexShaderLevel(LLPipeline::SHADER_OBJECT);
+}
+
+void LLDrawPoolTree::beginRenderPass(S32 pass)
+{
+        glEnableClientState(GL_VERTEX_ARRAY);
+        glEnableClientState(GL_NORMAL_ARRAY);
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+        
+        if ((mVertexShaderLevel > 0))
+        {
+                S32 scatterTex = gPipeline.mObjectSimpleProgram.enableTexture(LLPipeline::GLSL_SCATTER_MAP);
+                LLViewerImage::bindTexture(gSky.mVOSkyp->getScatterMap(), scatterTex);
+                sDiffTex = gPipeline.mObjectSimpleProgram.enableTexture(LLPipeline::GLSL_DIFFUSE_MAP);
+        }
+}
+
+void LLDrawPoolTree::render(S32 pass)
+{
+        LLFastTimer t(LLFastTimer::FTM_RENDER_TREES);
+
+        if (mDrawFace.empty())
+        {
+                return;
+        }
+
+        gPipeline.enableLightsDynamic(1.f);
+        LLGLSPipelineAlpha gls_pipeline_alpha;
+        
+        bindGLVertexPointer();
+        bindGLTexCoordPointer();
+        bindGLNormalPointer();
+
+        LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
+
+        renderTree();
+        
+}
+
+void LLDrawPoolTree::endRenderPass(S32 pass)
+{
+        if ((mVertexShaderLevel > 0))
+        {
+                gPipeline.mObjectSimpleProgram.disableTexture(LLPipeline::GLSL_SCATTER_MAP);
+                gPipeline.mObjectSimpleProgram.disableTexture(LLPipeline::GLSL_DIFFUSE_MAP);
+                glActiveTextureARB(GL_TEXTURE0_ARB);
+                glEnable(GL_TEXTURE_2D);
+        }
+
+        glDisableClientState(GL_NORMAL_ARRAY);
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+void LLDrawPoolTree::renderForSelect()
+{
+        if (mDrawFace.empty() || !mMemory.count())
+        {
+                return;
+        }
+
+        glEnableClientState (GL_VERTEX_ARRAY);
+        glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+        
+        LLOverrideFaceColor color(this, 1.f, 1.f, 1.f, 1.f);
+
+        LLGLSObjectSelectAlpha gls_alpha;
+
+        glBlendFunc(GL_ONE, GL_ZERO);
+        glAlphaFunc(gPickTransparent ? GL_GEQUAL : GL_GREATER, 0.f);
+
+        bindGLVertexPointer();
+        bindGLTexCoordPointer();
+
+        glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE,          GL_COMBINE_ARB);
+        glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB,           GL_REPLACE);
+        glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB,         GL_MODULATE);
+
+        glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB,           GL_PREVIOUS);
+        glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB,          GL_SRC_COLOR);
+
+        glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB,         GL_TEXTURE);
+        glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB,        GL_SRC_ALPHA);
+
+        glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB,         GL_PRIMARY_COLOR_ARB);
+        glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB,        GL_SRC_ALPHA);
+
+        renderTree(TRUE);
+
+        glAlphaFunc(GL_GREATER, 0.01f);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+        glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+        glDisableClientState (GL_TEXTURE_COORD_ARRAY);
+}
+
+void LLDrawPoolTree::renderTree(BOOL selecting)
+{
+        LLGLState normalize(GL_NORMALIZE, TRUE);
+        
+        // Bind the texture for this tree.
+        LLViewerImage::bindTexture(mTexturep,sDiffTex);
+        if (mTexturep)
+        {
+                if (mTexturep->getClampS()) {
+                        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+                }
+                if (mTexturep->getClampT()) {
+                        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+                }
+        }
+
+        glMatrixMode(GL_MODELVIEW);
+        
+        for (std::vector<LLFace*>::iterator iter = mDrawFace.begin();
+                 iter != mDrawFace.end(); iter++)
+        {
+                LLFace *face = *iter;
+                LLDrawable *drawablep = face->getDrawable();
+
+                if (drawablep->isDead())
+                {
+                        continue;
+                }
+
+                // Render each of the trees
+                LLVOTree *treep = (LLVOTree *)drawablep->getVObj();
+
+                LLColor4U color(255,255,255,255);
+
+                if (!selecting || treep->mGLName != 0)
+                {
+                        if (selecting)
+                        {
+                                S32 name = treep->mGLName;
+                                
+                                color = LLColor4U((U8)(name >> 16), (U8)(name >> 8), (U8)name, 255);
+                        }
+                        
+                        glPushMatrix();
+                        
+                        // Translate to tree base  HACK - adjustment in Z plants tree underground
+                        const LLVector3 &pos_agent = treep->getPositionAgent();
+                        glTranslatef(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
+
+                        // Rotate to tree position
+                        F32 angle_radians, x, y, z;
+                        treep->getRotation().getAngleAxis(&angle_radians, &x, &y, &z);
+                        glRotatef(angle_radians * RAD_TO_DEG, x, y, z);
+
+                        // Rotate and bend for current trunk/wind
+                        // Note that trunk stiffness controls the amount of bend at the trunk as 
+                        // opposed to the crown of the tree
+                        // 
+                        glRotatef(90.f, 0, 0, 1);
+                        const F32 TRUNK_STIFF = 22.f;
+                        glRotatef(treep->mTrunkBend.magVec()*TRUNK_STIFF, treep->mTrunkBend.mV[VX], treep->mTrunkBend.mV[VY], 0);
+
+                        F32 radius = treep->getScale().magVec()*0.5f;
+                        radius *= 0.1f;
+                        glScalef(radius, radius, radius);
+
+                        const F32 THRESH_ANGLE_FOR_BILLBOARD = 15.f;
+                        const F32 BLEND_RANGE_FOR_BILLBOARD = 3.f;
+
+                        F32 droop = treep->mDroop + 25.f*(1.f - treep->mTrunkBend.magVec());
+                        
+                        S32 stop_depth = 0;
+                        F32 app_angle = treep->getAppAngle()*LLVOTree::sTreeFactor;
+                        F32 alpha = 1.0;
+                        S32 trunk_LOD = 0;
+
+                        for (S32 j = 0; j < 4; j++)
+                        {
+
+                                if (app_angle > LLVOTree::sLODAngles[j])
+                                {
+                                        trunk_LOD = j;
+                                        break;
+                                }
+                        } 
+
+                        if (app_angle > (THRESH_ANGLE_FOR_BILLBOARD + BLEND_RANGE_FOR_BILLBOARD))
+                        {
+                                //
+                                //  Draw only the full geometry tree
+                                //
+                                //stop_depth = (app_angle < THRESH_ANGLE_FOR_RECURSION_REDUCTION);
+                                glAlphaFunc(GL_GREATER, 0.5f);
+                                LLDrawPool::LLOverrideFaceColor clr(this, color); 
+                                treep->drawBranchPipeline(this, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
+                        }
+                        else if (app_angle < (THRESH_ANGLE_FOR_BILLBOARD - BLEND_RANGE_FOR_BILLBOARD))
+                        {
+                                //
+                                //  Draw only the billboard 
+                                //
+                                //  Only the billboard, can use closer to normal alpha func.
+                                stop_depth = -1;
+                                glAlphaFunc(GL_GREATER, 0.4f);
+                                LLDrawPool::LLOverrideFaceColor clr(this, color); 
+                                treep->drawBranchPipeline(this, trunk_LOD, stop_depth, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
+                        }
+                        else
+                        {
+                                //
+                                //  Draw a blended version including both billboard and full tree 
+                                // 
+                                alpha = (app_angle - THRESH_ANGLE_FOR_BILLBOARD)/BLEND_RANGE_FOR_BILLBOARD;
+                                BOOL billboard_depth = TRUE; // billboard gets alpha
+                                if (alpha > 0.5f)
+                                {
+                                        billboard_depth = FALSE;
+                                }
+                                alpha = alpha/2.f + 0.5f;
+                                                                
+                                glAlphaFunc(GL_GREATER, alpha*0.5f);
+                                {
+                                        LLGLDepthTest gls_depth(GL_TRUE, billboard_depth ? GL_FALSE : GL_TRUE);
+                                        color.mV[3] = (U8) (llclamp(alpha, 0.0f, 1.0f) * 255);
+                                        LLDrawPool::LLOverrideFaceColor clr(this, color); 
+                                        treep->drawBranchPipeline(this, trunk_LOD, 0, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, alpha);
+                                }
+                                {
+                                        LLGLDepthTest gls_depth(GL_TRUE, billboard_depth ? GL_TRUE : GL_FALSE);
+                                        glAlphaFunc(GL_GREATER, (1.f - alpha)*0.1f);
+                                        color.mV[3] = (U8) (llclamp(1.f-alpha, 0.0f, 1.0f) * 255);
+                                        LLDrawPool::LLOverrideFaceColor clr(this, color); 
+                                        treep->drawBranchPipeline(this, trunk_LOD, -1, treep->mDepth, treep->mTrunkDepth, 1.0, treep->mTwist, droop, treep->mBranches, 1.f - alpha);
+                                }
+                        }
+                        glPopMatrix();
+                }
+        }
+
+        if (mTexturep)
+        {
+                if (mTexturep->getClampS()) {
+                        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+                }
+                if (mTexturep->getClampT()) {
+                        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+                }
+        }
+        glAlphaFunc(GL_GREATER, 0.01f);
+}
+
+
+S32 LLDrawPoolTree::rebuild()
+{
+        mRebuildTime++;
+        if (mRebuildTime >  mRebuildFreq)
+        {
+                // Flush AGP to force an AGP realloc and reduce AGP fragmentation
+                flushAGP();
+                mRebuildTime = 0;
+        }
+
+        return 0;
+}
+
+BOOL LLDrawPoolTree::verify() const
+{
+        BOOL ok = TRUE;
+
+        // shared geometry.  Just verify that it's there and correct.
+
+        // Verify all indices in the pool are in the right range
+        const U32 *indicesp = getRawIndices();
+        for (U32 i = 0; i < getIndexCount(); i++)
+        {
+                if (indicesp[i] > getVertexCount())
+                {
+                        ok = FALSE;
+                        llinfos << "Bad index in tree pool!" << llendl;
+                }
+        }
+        
+        if (!ok)
+        {
+                printDebugInfo();
+        }
+        return ok;
+}
+
+LLViewerImage *LLDrawPoolTree::getTexture()
+{
+        return mTexturep;
+}
+
+LLViewerImage *LLDrawPoolTree::getDebugTexture()
+{
+        return mTexturep;
+}
+
+
+LLColor3 LLDrawPoolTree::getDebugColor() const
+{
+        return LLColor3(1.f, 0.f, 1.f);
+}
+
+S32 LLDrawPoolTree::getMaterialAttribIndex() 
+{ 
+        return gPipeline.mObjectSimpleProgram.mAttribute[LLPipeline::GLSL_MATERIAL_COLOR];
+}